Draw a resonance structure, complete with all formal charges and lone (unshared) electron pairs, that shows the resonance interaction of the acetyl with the ortho position in acetophenone.

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

The biosphere of the earth is made up of what compound? organic or inorganic?